Finding the Fourth Proportional to 95,776.72, 132,165.60 and 55,487.20

Step by Step Solution

1. Step 1: Write the proportion equation
   95,776.72 : 132,165.60 = 55,487.20 : x
2. Step 2: Convert to fraction form
   95,776.72/132,165.60 = 55,487.20/x
3. Step 3: Cross multiply
   95,776.72x = 132,165.60 × 55,487.20
4. Step 4: Simplify right side
   95,776.72x = 7,333,499,080.32
5. Step 5: Solve for x
   x = 7,333,499,080.32/95,776.72
6. Step 6: Final answer
   x = 76,568.70